JPS59229197A - Surface treatment procedure for aluminum heat exchanger - Google Patents
Surface treatment procedure for aluminum heat exchangerInfo
- Publication number
- JPS59229197A JPS59229197A JP58100770A JP10077083A JPS59229197A JP S59229197 A JPS59229197 A JP S59229197A JP 58100770 A JP58100770 A JP 58100770A JP 10077083 A JP10077083 A JP 10077083A JP S59229197 A JPS59229197 A JP S59229197A
- Authority
- JP
- Japan
- Prior art keywords
- film
- heat exchanger
- surface treatment
- aluminum heat
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/107—Post-treatment of applied coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/02—Coatings; Surface treatments hydrophilic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はアルミニウム製熱交換器、特にアルミニウム製
熱交換器の放熱部及び冷却部′に構成するフィンの弐■
処理法に関するもので必る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an aluminum heat exchanger, particularly to a heat exchanger made of aluminum.
Required if it is related to processing methods.
従来、アルミニウム製熱交換器に白錆防止を目的として
陽極酸化皮膜処理、ベーマイト皮膜処理、樹脂皮１換処
理等の表向処理が施されているが、これ等の処理皮膜表
面は親水性が殆どなく、むしろ疎水性である。又クロメ
ート皮膜処理も行なわれているが、この皮膜は皮膜形成
初期に多少の親水性があるのみで、特に加温乾燥条件下
における経時によって親水性面から疎水性面に変化する
傾向にある。Conventionally, aluminum heat exchangers have been subjected to surface treatments such as anodic oxide coating, boehmite coating, and resin coating 1 conversion treatment for the purpose of preventing white rust, but the surface of these treated coatings is not hydrophilic. It is hardly hydrophobic. Chromate film treatment has also been carried out, but this film is only slightly hydrophilic at the initial stage of film formation, and tends to change from a hydrophilic surface to a hydrophobic surface over time, especially under heated and dry conditions.
一方、熱交換器の多くは、放熱あるいに冷却効果を向上
させるために放熱部及び冷却部の面積を出来る限り大き
くとる様設計されているため、フィンの間隔が極めてせ
壕く構成されている。このため冷却用として用いる場合
、大気中の水分が熱交換器表面、特にフィン間隙に凝集
する。凝集した水はフィン表面が疎水性面である程球状
の水筒になり易く、且つフィン間隙で目詰りを起して通
風抵抗が増加し、熱交換率を低下させる。又、フィン間
隙に溜った水滴は熱交換器の送風機によって飛散して熱
交換器の下部に設置した水滴受皿からはみ出し易くなり
、熱交換器の近傍を水で汚１〜などの欠点を有する。一
方暖房用として用いる場合においても、冬期室外機ＶＣ
霜が付着し熱効率が低下するため、時折熱交換器を逆転
運転し、室外機を加温し除霜を行なっている。この除霜
作動は短時間で且つ効率的に行なうことが冷暖房エアコ
ンの機能上不可欠で心ろ。従って除霜時融解した水筒を
すみやかに除去するためには、フィン表向を親水性にす
ることが効果的である。従って、水滴が熱交換器の放熱
部おるいは耐層ｊ部のフィン間隙に残留し水筒による目
詰りを起こさせない様にするため、熱交換器のｔそ面に
親水性を与え水濡れ性を向上させる処理が行なわれてい
るが、単に水濡れ性を向上させる処理だけでＧ−よ耐食
性などの点で十分でなく、特にアルミニウム製熱交換器
の場合には防錆処理も必要である場合が多い。On the other hand, most heat exchangers are designed to have as large an area as possible for the heat radiation and cooling parts in order to improve heat radiation and cooling effects, so the fin spacing is extremely narrow. There is. Therefore, when used for cooling, moisture in the atmosphere condenses on the surface of the heat exchanger, especially in the gaps between the fins. The more hydrophobic the fin surface is, the more the aggregated water tends to form a spherical water bottle, and the fin gaps become clogged, increasing ventilation resistance and lowering the heat exchange rate. In addition, the water droplets accumulated in the fin gaps are easily scattered by the blower of the heat exchanger and spill out of the water droplet tray installed at the bottom of the heat exchanger, resulting in the disadvantage that the vicinity of the heat exchanger is contaminated with water. On the other hand, even when used for heating, the winter outdoor unit VC
Because frost builds up and reduces thermal efficiency, the heat exchanger is occasionally operated in reverse to warm the outdoor unit and defrost it. Keep in mind that it is essential for the functionality of the air conditioner to perform this defrosting operation in a short time and efficiently. Therefore, in order to quickly remove the melted water bottle during defrosting, it is effective to make the fin surface hydrophilic. Therefore, in order to prevent water droplets from remaining in the heat dissipation part of the heat exchanger or the fin gaps of the resistant layer part and clogging the water bottle, the t-side surface of the heat exchanger should be made hydrophilic and water-wettable. However, treatment to simply improve water wettability is not sufficient in terms of corrosion resistance, and especially in the case of aluminum heat exchangers, rust prevention treatment is also necessary. There are many cases.
本発明の目的ぼ、アルミニウム製熱交換器表面の白錆防
止と親水性を向上させることにある。The purpose of the present invention is to prevent white rust and improve hydrophilicity on the surface of an aluminum heat exchanger.
この目的を達成するためになされた本発明は、アルミニ
ウム製熱交換器の狭量に陽極酸化皮膜、クロメート等の
化成皮膜、市分子樹脂皮膜等の耐食性の表１ｍ処理皮膜
を形成させた後、更にアルミナ微粒子を含有する）ピ濁
水１各液を頭布すること全特徴とするアルミニウム製熱
交換器の表面処理法である。熱交換器の表面に耐食性の
製団処理皮膜を形成させることによって耐食性をもたせ
、アルミナ微粒子を含有する懸濁水溶液を塗布しアルミ
ナ微粒子の皮膜を形成させることによって、水などで流
れ落ちにくい持続性のある親水性面を与える。The present invention, which has been made to achieve this object, is to form a corrosion-resistant Table 1m treatment film such as an anodized film, a chemical conversion film such as chromate film, or a molecule resin film on a small area of an aluminum heat exchanger, and then further This is a surface treatment method for an aluminum heat exchanger, which is characterized by applying each liquid (containing fine alumina particles) to the surface of the aluminum heat exchanger. A corrosion-resistant aluminized film is formed on the surface of the heat exchanger to provide corrosion resistance, and by applying an aqueous suspension containing alumina fine particles to form a film of alumina fine particles, it is possible to create a durable coating that is difficult to wash off with water. Gives a certain hydrophilic surface.
同、前記アルミナ微粒子全含有する懸濁水溶液に７リ力
微粒子及び／又はタンニンを含有させることによって、
更に親水性を向上させることができる。In the same way, by adding 7 Lili fine particles and/or tannin to the suspended aqueous solution containing all the alumina fine particles,
Furthermore, hydrophilicity can be improved.
本発明に用いる陽極酸化皮膜、クロメート等の化成皮膜
は公知のものを１史用することができ、又高分子樹脂皮
膜も耐食性のある公知のものが１史用できる。熱交換器
表面に形成させる高分子樹脂皮膜の厚さは通常０．２〜
１０ミクロンであり、最適には０．２〜２ミクロンであ
る。As the anodic oxide film and chemical conversion film such as chromate film used in the present invention, any known one may be used, and any known corrosion-resistant polymer resin film may be used. The thickness of the polymer resin film formed on the heat exchanger surface is usually 0.2~
10 microns, optimally 0.2-2 microns.
本発明に用いるアルミナ微粒子としては、水にｍ解しな
い高分子量のコロイダルアルミナで１〜１００ミリミク
ロン程度のものが良好である。懸濁助剤として用いる界
面活性剤は、通常のアニオン系、ノニオン系で場合によ
っては両性イオン系でも良い。The fine alumina particles used in the present invention are preferably high molecular weight colloidal alumina particles that do not dissolve in water and have a diameter of about 1 to 100 millimicrons. The surfactant used as a suspension aid may be a general anionic or nonionic surfactant, or may be an amphoteric surfactant depending on the case.
高分子量のコロイダルアルミナは化学構造的に安定な０
１４基を持っており、水中で解離するとともに正の電荷
を帯びて分散している。この懸濁水浴液？ｌｌ−表向処
理皮膜上に塗布し乾燥することによって、アルミナ微粒
子が表面処理皮膜表面に固着したり、アルミナ微粒子が
相互に会合し凝集する。High molecular weight colloidal alumina has a stable chemical structure.
It has 14 groups, and when it dissociates in water, it is positively charged and dispersed. This suspension bath liquid? By coating and drying on the surface treated film, the alumina fine particles stick to the surface of the surface treated film, or the alumina fine particles associate with each other and aggregate.
一度固着もしくは凝集したアルミナ微粒子は角分散し難
く皮膜表［釦から脱落し難くなり、経時変化が少なく持
＠院のめる親水性面全与える。Once fixed or aggregated, fine alumina particles are difficult to angularly disperse, making it difficult for them to fall off the surface of the coating (button), and giving the entire surface a hydrophilic surface that changes less over time and retains its properties.
高分子量のコロイダルアルミナと高分子量のコロイダル
ノリ力を混合した懸濁水浴液を表面処理皮膜上に塗布し
乾燥することによって、皮）模衣曲にムライト組成（！
、ＡＩ、０３・２ＳｉＯ２）に近いものが固着凝集する
。これは皮１良＠面から脱落し難くなり、経時変化が少
なく持続性のある親水性面を与える。By applying a suspension bath liquid containing a mixture of high molecular weight colloidal alumina and high molecular weight colloidal glue onto the surface treatment film and drying it, a mullite composition (!
, AI, 03.2SiO2) are fixed and aggregated. This makes it difficult to fall off from the skin surface and provides a long-lasting hydrophilic surface with little change over time.
アルミナ微粒子を含有する懸濁水高液にタンニンを混合
すると、表向処理皮膜面の親水性が更に向上する。シリ
カ微粒子とタンニンとを一緒にアルミナ微粒子の懸濁水
浴液に混合しても同様な効果がある。When tannin is mixed into the suspension containing fine alumina particles, the hydrophilicity of the surface-treated film surface is further improved. A similar effect can be obtained by mixing fine silica particles and tannin together in a bath solution in which fine alumina particles are suspended.
前記アルミナ微粒子を含有すり）静濁７に１岱液に水溶
性高分子樹脂を混合させ、それを塗布、乾燥することに
よって、経時変化の少ない持続性のある親水性面を与え
る。また水ｒ容性高分子樹脂を混合すると懸濁水浴液の
粘度調整が容易になり、塗布量の調整が容易になる。A water-soluble polymer resin is mixed in one part of the solution containing the alumina fine particles (7), and by applying and drying it, a long-lasting hydrophilic surface with little change over time is provided. Further, when a water-soluble polymer resin is mixed, the viscosity of the suspension water bath liquid can be easily adjusted, and the amount of application can be easily adjusted.
前記アルミナ微粒子を含有する懸濁水溶液に界面活性剤
を添加すると、懸濁水浴液の均一性が増し、界面活性剤
の湿潤、浸透作用により均一な塗膜となる。When a surfactant is added to the suspended aqueous solution containing the alumina fine particles, the uniformity of the suspended water bath increases, and a uniform coating film is formed due to the wetting and penetrating effects of the surfactant.
本発明で用いるシリカ微粒子としては、水にｍ解しない
高分子量のもので粒子径は１〜１００ミリミクロンのも
のが良好である。タンニンとしては、タンニンまたはタ
ンニン酸であり、加水分解性タンニンでも縮合性タンニ
ンでも、またこれらの一部が分解したもの金含んでも良
く、デプシド、ガロタンニン、支那産タンニン、トルコ
産タンニン。The fine silica particles used in the present invention preferably have a high molecular weight that does not dissolve in water and have a particle size of 1 to 100 millimicrons. Tannins are tannins or tannic acids, and may be hydrolyzable tannins or condensed tannins, or partially decomposed tannins that may contain gold, such as depsides, gallotannins, tannins from China, and tannins from Turkey.
ハマメリタンニン、カシコカエデのタンニン酸。Hamameli tannin, tannic acid from maple oak.
ケプリン戚、スマックタンニ／、五倍子タンニン。Keplin relatives, sumaktanni/, fivefold tannins.
エラーゲ酸タンニン、カテキン、カテキンタンニン酸及
びケプ２すのタンニン酸等を挙げることが出来る。Examples include erageic acid tannin, catechin, catechin tannic acid, and cephalic acid tannic acid.
本発明における耐食性表面処理皮膜上のアルミナ微粒子
を含有する皮膜の厚さは、乾燥皮膜量として０．０１〜
５〜が良い。皮膜量が０．０１〜以下であると十分な親
水性面が得らｆＬ雉く、５〜′以上では経済的に不利で
ある。産１戻量が０６１〜１〜における水との接触角は
６０度以下となり実用的な親水性面を与える。In the present invention, the thickness of the coating containing alumina fine particles on the corrosion-resistant surface treatment coating is 0.01 to 0.01 in terms of dry coating amount.
5~ is good. If the coating amount is less than 0.01, a sufficient hydrophilic surface cannot be obtained, and if it is more than 5, it is economically disadvantageous. When the production/return amount is 061~1~, the contact angle with water is 60 degrees or less, providing a practical hydrophilic surface.
次に実施例を記す。Next, examples will be described.
実施例
処理方法１〜６
エチレンーアクリル酸共重合体樹ｊ１２２０ｆ、２８％
アンモニア水４６７、脱イオン水７６．７？ｋ ４””
ｌ’ｃｒ＆、１３０’Ｃに保ち、約１時間攪拌しながら
水に可溶化した後冷却し、さらに２８％アンモニア水で
ＰＨ９，５±０．５に調整した樹脂固形分濃度２２％の
樹脂溶液を作り、この樹脂溶液を１０％濃度に希釈して
得た水浴液に脱脂水洗済みのアルミニウム板（Ａ１１０
０．０．５ｍＴＬ厚）を２０℃で１０秒間浸漬した後ゴ
ムロールで絞り、恒温乾燥機中（１３０’に）で２分間
乾燥し水分を除去して乾燥皮膜量１．２〜の耐食性表面
処理皮膜を形成させた後、下記の各種懸濁水浴液を塗゛
布し、ゴムロールで絞り、恒温乾燥機中（１６０℃）で
乾燥し皮膜全形成させた。Example treatment methods 1 to 6 Ethylene-acrylic acid copolymer tree j1220f, 28%
Ammonia water 467, deionized water 76.7? k 4””
A resin solution with a resin solid content concentration of 22%, kept at 130'C, solubilized in water with stirring for about 1 hour, cooled, and further adjusted to pH 9.5 ± 0.5 with 28% ammonia water. This resin solution was diluted to 10% concentration, and a degreased and water-washed aluminum plate (A110
0.0.5mTL thickness) was immersed for 10 seconds at 20°C, squeezed with a rubber roll, dried for 2 minutes in a constant temperature dryer (at 130') to remove moisture, and finished with a corrosion-resistant surface treatment with a dry film weight of 1.2~. After forming a film, the following various suspension water bath solutions were applied, squeezed with a rubber roll, and dried in a constant temperature dryer (160°C) to form a complete film.
処理方法７〜１２
脱脂清浄にしたアルミニウム板（Ａ１１００．０．５關
厚）″ｆ！ニクロム酸クフクロメート系化成浴液録商標
ボンデライト７１３、日本バー力うイジング■製。Treatment Methods 7 to 12 Degreased and cleaned aluminum plate (A1100.0.5 thickness)''f! Dichromate-based chemical bath liquid record trademark Bonderite 713, manufactured by Nippon Baru Ising ■.
７２〜．５０℃ンに約１分間浸漬し、クロメート化成皮
膜（皮膜蓋ニクロムとして約ａｏ７７Ｌ〜 ）を形成さ
せた後、水洗し乾燥させた試験板に下記の各種懸濁水溶
液ヲ盆布し、ゴムロールで絞り、恒温乾燥機中（１３０
℃）で乾燥し皮膜を形成させた。72~. After dipping at 50℃ for about 1 minute to form a chromate conversion film (approximately 77L ~ as a nichrome film cover), the following various aqueous suspension solutions were poured onto the washed and dried test plate, and squeezed with a rubber roll. , in a constant temperature dryer (130
℃) to form a film.
各種懸濁水浴液の調整の仕方
処理方法１及び７
粒子大きさ平均１００ＴＬμＸ１１Ｊｆｉμの市販アル
ミナＷ質液、Ａｌ２Ｏ３として１０重量パーセント濃度
（登録商標アルミナゾル−１００、日照化学）ｉｏ重量
部、ノニルフェノール系左向活性剤０．５重量部を８８
．５重量部の脱イオン水１こ浴解分散し、懸濁水浴液と
した。How to prepare various suspension bath solutions Treatment methods 1 and 7 Commercially available alumina W liquid with average particle size of 100 TL μ x 11 J fi μ, 10 weight percent concentration as Al2O3 (registered trademark Alumina Sol-100, Nissei Kagaku) io weight part, nonylphenol-based leftward 88 0.5 parts by weight of activator
．． 5 parts by weight of deionized water was dissolved and dispersed in one bath to obtain a suspension water bath liquid.
処理方法２及び８
処理方法１及び７で用いた市販アルミナ膠質液７０ｆｔ
’Ｊ、ノニルフェノール系界面活性剤０．５重社部を２
９．５重量部の脱イオン水で希釈溶解分散し、ｊ曹濁水
１び液とした。Treatment methods 2 and 8 70ft of commercially available alumina colloid liquid used in treatment methods 1 and 7
'J, nonylphenol surfactant 0.5 heavy parts 2
The mixture was diluted, dissolved and dispersed with 9.5 parts by weight of deionized water to obtain a liquid solution.
処理方法６及び９
粒子大きざ平均１００ｍμＸ １０１１１μの市販アル
ミナ）湿質液、Ａｌ２Ｏ３として１０重通パーセント濃
度（登録商標アルミナゾル−２００、日照化学）１０重
社部、１０〜２０７７１μの粒径の７リ力粒子膠質液、
δ１０．として２０重量バー七ント＠ｆＫ（登録商標ス
ノーテックス・Ｏ１日産化学）１０重量部を脱イオン水
８０重量部で布釈分散し、懸濁水浴液とした。Treatment Methods 6 and 9 Commercially available alumina with a particle size average of 100 mμ x 10111μ force particle colloid fluid,
δ10. As a suspension, 10 parts by weight of 20 parts by weight Bar7ant@fK (registered trademark Snowtex O1 Nissan Chemical) was dispersed in 80 parts by weight of deionized water to prepare a suspension bath liquid.
処理方法４及び１０
処理方法１及び７で用いた市販アルミナ膠質液１０重量
部、ポリエチレンオキサイド熱可塑性高分子樹脂（登録
商標ＰＥ０−１、製鉄化学）５重量部、ノニルフェノー
ル系界面活性剤０．５重量部ｉ８４．５重景部の脱イオ
ン水にて希釈分散浴解し、懸濁水浴液とした。Treatment methods 4 and 10: 10 parts by weight of the commercially available alumina colloid liquid used in treatment methods 1 and 7, 5 parts by weight of polyethylene oxide thermoplastic polymer resin (registered trademark PE0-1, manufactured by Tetsusei Kagaku), and 0.5 parts by weight of nonylphenol surfactant. The mixture was diluted with deionized water of 84.5 parts by weight and dissolved in a dispersion bath to obtain a suspension water bath.
処理方法５及び１１
処理方法４及び１０で用いた市販アルミナ膠質液１０重
量部並びにポリエチレンオキサイド熱可塑性高分子樹脂
（登録商標ＰＥＵ−１、製鉄化学）５重量部、タンニン
酸（登録商標タンニン酸ＡＬ、富士化学工業）１重量部
を８４重量部の脱イオン水に希釈分散浴解し、懸濁水浴
液とした。Treatment Methods 5 and 11 10 parts by weight of the commercially available alumina colloid liquid used in Treatment Methods 4 and 10, 5 parts by weight of polyethylene oxide thermoplastic polymer resin (registered trademark PEU-1, Tetsusei Kagaku), and tannic acid (registered trademark Tannic Acid AL). , Fuji Chemical Industry) was diluted and dissolved in 84 parts by weight of deionized water to obtain a suspension water bath solution.
処理方法６及び１２
処理方法５及び９に用いた調整液にさらに処理方法５及
び１１に用いたポリエチレンオキサイド熱可塑性高分子
樹脂（登録商標ＰＥ０−１、製鉄化学）２重量部並びに
タンニン酸（登録商標タンニン酸ＡＬ、富士化学工業）
１重針部を添加ｍ解し、懸濁水溶液とした。Treatment Methods 6 and 12 In addition to the adjustment liquid used in Treatment Methods 5 and 9, 2 parts by weight of polyethylene oxide thermoplastic polymer resin (registered trademark PE0-1, Tetsuko Kagaku) and tannic acid (registered trademark) used in Treatment Methods 5 and 11 were added. Trademark tannic acid AL, Fuji Chemical Industry)
The single needle portion was added and dissolved to form an aqueous suspension.
前記処理方法１〜１２の処理アルミニウム板の水の接触
角の測定及びＪＩＳ−Ｚ−２３７１に基づく塩水頃霧試
験全行ない、親水性及び耐食性を調べた。その結果を第
１表に記す。Hydrophilicity and corrosion resistance of the treated aluminum plates according to the treatment methods 1 to 12 were measured by measuring the contact angle of water and performing a salt water fog test based on JIS-Z-2371. The results are shown in Table 1.
接触角測定法
固体表面上に静置した直径１〜２羽の小水滴の接触角を
ゴニオメータ一式接触角測定器Ｇ−１型常温用（エレマ
光学株式会社製品）を用いて測定した。加工後、初期の
もの、流水浸漬１週間後のものについてそれぞれ測定し
た。Contact Angle Measuring Method The contact angle of a small water droplet of 1 to 2 diameters placed on a solid surface was measured using a goniometer complete contact angle measuring device Model G-1 for room temperature use (manufactured by Elema Optical Co., Ltd.). After processing, measurements were made on the initial sample and the sample one week after immersion in running water.
判定法 ・：接触角２０°以下 親水性良好×：接触角
５０°以上 親水性劣る
比較例
処理方法１６
処ｊ里方法１〜乙にボされた懸濁水浴液を匿布しない以
外は処理方法１〜６と同様に処理した。Judgment method ・: Contact angle 20° or less Good hydrophilicity ×: Contact angle 50° or more Comparative example treatment method 16 with poor hydrophilicity Treatment method 1 to treatment method except that the suspended water bath liquid spilled in step B is not covered with cloth It was treated in the same manner as in 1 to 6.
処理方法１４
処理方法７〜１２に示された懸濁水浴液を塗布しない以
外は処理方法７〜１２と同様に処理した。Treatment method 14 The treatment was carried out in the same manner as treatment methods 7 to 12 except that the suspension water bath shown in treatment methods 7 to 12 was not applied.
前記処理方法１６及び１４の処理アルミニウム板を実施
例と同様の方法により親水性及び耐食性を調べた。その
結果を第１表に記す。Hydrophilicity and corrosion resistance of the treated aluminum plates obtained by treatment methods 16 and 14 were examined in the same manner as in the examples. The results are shown in Table 1.
第 １ 表
以上の如く、本発明を実施することによ、す、アルミニ
ウム製熱交換器弐面の白錆防止と親水性を向上させるこ
とができる。As shown in Table 1, by carrying out the present invention, it is possible to prevent white rust and improve the hydrophilicity of the second side of an aluminum heat exchanger.
代理人 岡 部 正 良Agent: Tadashi Oka
Claims (1)
理皮膜を形成させた後、更にアルミナ微粒子を含有する
懸濁水浴牧を塗布すること全特徴とするアルミニウム製
熱交換器の表面処理法。 （２）アルミニウム製熱交換器の表面に耐食性の表面処
理皮膜を形成させた後、更にアルミナ微粒子とノリカ微
粒子及び／又はタンニンとを含有する懸濁水浴液を塗布
することケ特徴とするアルミニウム製熱交換と１頂面処
理法。[Claims] (Re) An aluminum heat exchanger characterized in that after a corrosion-resistant surface treatment film is formed on the surface of the aluminum heat exchanger, a suspension water coating containing alumina fine particles is further applied. (2) After forming a corrosion-resistant surface treatment film on the surface of an aluminum heat exchanger, a suspension water bath solution containing alumina fine particles, norica fine particles and/or tannin is further applied. Features aluminum heat exchange and 1 top surface treatment method.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58100770A JPS59229197A (en) | 1983-06-08 | 1983-06-08 | Surface treatment procedure for aluminum heat exchanger |
| AU28946/84A AU2894684A (en) | 1983-06-08 | 1984-06-01 | Heat exchanger surface treatment |
| EP84106430A EP0128514A3 (en) | 1983-06-08 | 1984-06-05 | Process for treating surfaces of heat exchangers |
| DE19843420852 DE3420852A1 (en) | 1983-06-08 | 1984-06-05 | METHOD FOR TREATING HEAT EXCHANGER SURFACES |
| BR8402758A BR8402758A (en) | 1983-06-08 | 1984-06-07 | SURFACE TREATMENT PROCESS FOR ALUMINUM HEAT EXCHANGERS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58100770A JPS59229197A (en) | 1983-06-08 | 1983-06-08 | Surface treatment procedure for aluminum heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59229197A true JPS59229197A (en) | 1984-12-22 |
Family
ID=14282720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58100770A Pending JPS59229197A (en) | 1983-06-08 | 1983-06-08 | Surface treatment procedure for aluminum heat exchanger |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0128514A3 (en) |
| JP (1) | JPS59229197A (en) |
| AU (1) | AU2894684A (en) |
| BR (1) | BR8402758A (en) |
| DE (1) | DE3420852A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813452A (en) * | 1994-04-01 | 1998-09-29 | Kansai Paint Co., Ltd. | Coating composition for hydrophilization and method for hydrophilization |
| JP2006522304A (en) * | 2003-03-31 | 2006-09-28 | ベール ゲーエムベーハー ウント コー カーゲー | Heat exchanger and surface treatment method thereof |
| JP2007512493A (en) * | 2003-11-26 | 2007-05-17 | ベール ゲーエムベーハー ウント コー カーゲー | Heat exchanger |
| JP2015222155A (en) * | 2014-05-23 | 2015-12-10 | 三菱アルミニウム株式会社 | Fin material for heat exchanger and method for manufacturing the same |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07109355B2 (en) * | 1986-05-20 | 1995-11-22 | 日本パ−カライジング株式会社 | Aluminum heat exchanger and manufacturing method thereof |
| DE19812577C1 (en) * | 1998-03-21 | 2000-05-25 | Gerhard Fauner | Chemically and-or physically curing or setting material mixture, especially a mortar, cement or adhesive, comprises a nano-fine inorganic binder and a binder reaction partner, accelerator or catalyst |
| DE102005003543A1 (en) * | 2005-01-26 | 2006-08-03 | Klingenburg Gmbh | Humidity/heat-exchange device e.g. plate heat exchanger, useful for keeping the area at moderate temperature and for air-conditioning the area, comprises humidity/heat exchange surface |
| DE102008010517A1 (en) * | 2008-02-22 | 2009-09-03 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance for drying laundry, which has a component that can be flowed around by process air |
| DE102011086414A1 (en) * | 2011-11-15 | 2013-05-16 | BSH Bosch und Siemens Hausgeräte GmbH | Heat exchanger for laundry treatment machine e.g. clothes dryer used in house, has anodized coat which is formed in particulate-repellent surface layer formed with outer surface |
| WO2018067679A1 (en) * | 2016-10-04 | 2018-04-12 | 3M Innovative Properties Company | Methods of making and using heat exchangers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL279971A (en) * | 1961-06-30 | |||
| BE791421A (en) * | 1972-11-16 | 1973-03-16 | Prb Sa | RUST INHIBITOR ESPECIALLY FOR THE PRE-TREATMENT OF FERROUS SURFACES BEFORE PAINTING, |
| DE2432593C3 (en) * | 1974-07-06 | 1980-08-14 | Nippon Paint Co., Ltd., Osaka (Japan) | Process for applying layers of paint to conductive materials |
| US4181773A (en) * | 1978-03-29 | 1980-01-01 | General Electric Company | Process for rendering surfaces permanently water wettable and novel products thus-produced |
| JPS582596A (en) * | 1981-06-30 | 1983-01-08 | Nippon Parkerizing Co Ltd | Surface treatment for heat exchanger made of aluminum |
-
1983
- 1983-06-08 JP JP58100770A patent/JPS59229197A/en active Pending
-
1984
- 1984-06-01 AU AU28946/84A patent/AU2894684A/en not_active Abandoned
- 1984-06-05 EP EP84106430A patent/EP0128514A3/en not_active Withdrawn
- 1984-06-05 DE DE19843420852 patent/DE3420852A1/en not_active Withdrawn
- 1984-06-07 BR BR8402758A patent/BR8402758A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813452A (en) * | 1994-04-01 | 1998-09-29 | Kansai Paint Co., Ltd. | Coating composition for hydrophilization and method for hydrophilization |
| JP2006522304A (en) * | 2003-03-31 | 2006-09-28 | ベール ゲーエムベーハー ウント コー カーゲー | Heat exchanger and surface treatment method thereof |
| JP4653731B2 (en) * | 2003-03-31 | 2011-03-16 | ベール ゲーエムベーハー ウント コー カーゲー | Heat exchanger and surface treatment method thereof |
| JP2007512493A (en) * | 2003-11-26 | 2007-05-17 | ベール ゲーエムベーハー ウント コー カーゲー | Heat exchanger |
| JP2015222155A (en) * | 2014-05-23 | 2015-12-10 | 三菱アルミニウム株式会社 | Fin material for heat exchanger and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0128514A3 (en) | 1986-08-13 |
| AU2894684A (en) | 1984-12-13 |
| EP0128514A2 (en) | 1984-12-19 |
| DE3420852A1 (en) | 1984-12-13 |
| BR8402758A (en) | 1985-05-14 |
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